Hi, I'm 5'8'' tall girl and my weight is...

Hi, I'm 5'8'' tall girl and my weight is 53-55 kg. I need this deck for all mountain riding and for deep snow. I'm not sure which size is more suitable for me 153 or 157. Will be 153 enough for deep snow? And will I be able to butter on 157? I'm a bit confused, please advise :)